Problem with Subform placement

[Former Community Member]

I have two subforms that are visable when their checkboxes are clicked (Let's say SubbformA & SubformB). I have it so the user can view one or both subforms at the same time.



I want Subform B appear at the top of the current page IF only Subform A isn't selected. Otherwise if both are clicked- Sub B stacks perfectly behind Sub A.



It all works fine if I just click Sub B.........But if I select Sub A first and then deselect it then click B, SubB appears on the next page. Does that make sense? How can I fix this? Any suggestions would be greatly appreciated.